IDEAYA Biosciences, Inc. — Director's Dealing 2021

Feb 27, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IDEAYA Biosciences, Inc. (IDYA)
CIK: 0001676725
Period of Report: 2021-02-24

Reporting Person: Dillon Michael P. (SVP, Chief Scientific Officer)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-02-24	Stock Option (right to buy)	$19.52	A	80000	Acquired	2031-02-23	Common Stock (80000)	Direct

Footnotes

F1: 25% of the shares subject to the option vest on the first anniversary measured from January 1, 2021 (the "Vesting Commencement Date"), and 1/48th of the total number of shares vest monthly thereafter, such that 100% of the shares subject to the option will be fully vested and exercisable on the fourth anniversary of the Vesting Commencement Date.